Not being funny, but they've never made a Cayman with bare metal paint on the interior. Some quality but easily markable plastics yes, but no bare metal.
well, the central tunnel was bright yellow IIRC - same as outside (i could be wrong though - it was a while ago)
Ah, I see what you mean now! That's an option on the cars, and you pay more for that than you do to have the usual soft-touch plastics. I'd love to get mine re-done in either Guards Red or Basalt Black, but the cost to do it outside of the first build in the factory is somewhat less than appealing.